Preheat your grill to medium. When it is up to temp, grill your bratwursts for 10 to 12 minutes, turning occasionally until golden brown and warmed through.

In the meantime, place a medium saucepot over medium heat. Add the oil and the onions along with a good pinch of salt. Cook for 4 to 5 minutes until softened then add the sauerkraut, paprika and caraway seeds along with beer. Simmer until the kraut is heated through, about 5 minutes.

When the bratwursts are ready, cut them lengthwise and place them on the pretzel rolls that have been spread with mustard. Top with some of the sauerkraut and enjoy.